Service Manual

Fuel Supply Lines ISB, ISBe and QSB (Common Rail [...]
Page 6-58 Section 6 - Injectors and Fuel Lines - Group 06
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Directions for service of a two-button quick-disconnect
fitting:
Remove the quick disconnect style fuel lines by pressing
in the locking tangs on both sides of the quick disconnect
fitting.
To aid removal, a screwdriver may be inserted between
the fuel line end and quick disconnect male union. After
pressing the opposing locking tangs, twisting the flat blade
of the screwdriver helps to remove the fuel line.
Install the quick-disconnect style fuel lines by pushing
quick-disconnect fitting onto male union until it clicks.
Directions for service of a banjo bolt fitting:
A sealing washer is used on both sides of a banjo fitting.
NOTE: New sealing washers must be used when
installing the banjo bolt fitting.
Installation:
Torque Value: 24 N•m [ 212 in-lb ]
Directions for service of a Straight Thread O-ring fitting:
A sealing o-ring is used to seal the connection.
Torque Value: 37 N•m [ 27 ft-lb ]
Initial Check
Inspect all fuel supply line fittings and lines. Look for
cracks in the lines or leaks in the fittings.
Check for loose or broken brackets.
NOTE: Clean all fittings before disassembly. Dirt or
contaminants can damage the fuel system.